Comments: I couldn't reach the ledge with a seventy meter rope. So depending on brand and rope stretch, seventy meters may not be sufficient. I was almost lowered off through the ATC and dropped due to inexperience on my part and my partner's part. I would have taken a 15 foot fall to the ledge. It is another hundred or so feet to the base of the cliffline from the ledge. It could have been serious.